Swiss Thigh and Fly

Grab a pair of 8- to 10-pound dumbbells and lie on your back with your arms extended directly above your shoulders, palms facing in, and a stability ball between your legs. Keeping your legs straight, raise them so the bottoms of your feet face the ceiling (A). Keeping your elbows slightly bent, slowly lower the dumbbells out to the sides so they're in line with your shoulders. At the same time, slowly lower the ball to within a few inches of the floor (B). Slowly raise the dumbbells and the stability ball back to start. That's one rep. Do three sets of 12 to 15 reps, resting for 30 seconds between sets.